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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
04/07/2019 |
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Actualizado : |
04/12/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MILKOVIC, M.; PARUELO, J.; NOSETTO, M.D. |
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Afiliación : |
MAYRA MILKOVIC, Fundación Vida Silvestre Argentina, Defensa 251 6K, Ciudad Autónoma de Buenos Aires, Argentina.; JOSÉ PARUELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//IFEVA and Dep. Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, Buenos Aires and CONICET. /IECA. Facultad de Ciencias. Universidad de la República, Uruguay.; MARCELO D NOSETTO, Grupo de Estudios Ambientales, Instituto de Matemática Aplicada San Luis, IMASL, CONICET and Universidad Nacional de San Luis./Cátedra de Climatología Agrícola (FCA-UNER), Ruta 11, km 10, Oro verde, Entre Ríos, Argentina. |
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Título : |
Hydrological impacts of afforestation in the semi-arid Patagonia: a modeling approach. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Ecohydrology, 2019, Article number e2113, 2019. |
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DOI : |
10.1002/eco.2113 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 15 November 2018 / Revised: 13 May 2019 / Accepted: 19 May 2019. |
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Contenido : |
Abstract:
Afforestation has been widely encouraged with different goals, including as a strategy to tackle global warming. However, the side?effects of this land?use transformation have been in many cases underestimated. Particularly, the hydrological impacts may become relevant in (semi)arid regions where water is a key element. In this work, we evaluated the hydrological effects triggered by afforestation with ponderosa pine in the semiarid Argentine Patagonia that is currently a focus of afforestation programs. For this purpose, we used complementary approaches that included hydrological modelling (DINAQUA model), satellite image analysis, and soil wetness data. All analyses provided convergent results into hydrological effects of afforestation. The modelling results showed that afforestation significantly increased transpiration in relation to native grass?shrub steppe. In the steppe in degraded condition, transpiration accounted for only 10% (40 mm year?1) of total water flux, whereas in adult pine plantations, it accounted for up to 73% (277 mm year?1). Deep drainage was also severely affected by afforestation as it decreased from 182 mm year?1 in the steppe to zero in adult plantations, according to model simulations. Estimates from Landsat images also showed that evapotranspiration was higher in plantations compared with the steppe. Soil wetness data also revealed significantly drier soils in plantations. Our results indicate that pine plantations in the semiarid Patagonia evaporate all rainfall inputs, resulting in zero deep drainage and groundwater recharge. If the afforested area in the region increases, downstream meadow ecosystems, which are hotspots of primary productivity, may be negatively impacted. MenosAbstract:
Afforestation has been widely encouraged with different goals, including as a strategy to tackle global warming. However, the side?effects of this land?use transformation have been in many cases underestimated. Particularly, the hydrological impacts may become relevant in (semi)arid regions where water is a key element. In this work, we evaluated the hydrological effects triggered by afforestation with ponderosa pine in the semiarid Argentine Patagonia that is currently a focus of afforestation programs. For this purpose, we used complementary approaches that included hydrological modelling (DINAQUA model), satellite image analysis, and soil wetness data. All analyses provided convergent results into hydrological effects of afforestation. The modelling results showed that afforestation significantly increased transpiration in relation to native grass?shrub steppe. In the steppe in degraded condition, transpiration accounted for only 10% (40 mm year?1) of total water flux, whereas in adult pine plantations, it accounted for up to 73% (277 mm year?1). Deep drainage was also severely affected by afforestation as it decreased from 182 mm year?1 in the steppe to zero in adult plantations, according to model simulations. Estimates from Landsat images also showed that evapotranspiration was higher in plantations compared with the steppe. Soil wetness data also revealed significantly drier soils in plantations. Our results indicate that pine plantations in the semiarid Pat... Presentar Todo |
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Palabras claves : |
AGUA SUBTERRANEA; ALBEDO; GROUNDWATER; MEADOWS; PINUS; PINUS PONDEROSA; SURFACE TEMPERATURE. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02525naa a2200253 a 4500
001 1059929
005 2019-12-04
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1002/eco.2113$2DOI
100 1 $aMILKOVIC, M.
245 $aHydrological impacts of afforestation in the semi-arid Patagonia$ba modeling approach.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: 15 November 2018 / Revised: 13 May 2019 / Accepted: 19 May 2019.
520 $aAbstract: Afforestation has been widely encouraged with different goals, including as a strategy to tackle global warming. However, the side?effects of this land?use transformation have been in many cases underestimated. Particularly, the hydrological impacts may become relevant in (semi)arid regions where water is a key element. In this work, we evaluated the hydrological effects triggered by afforestation with ponderosa pine in the semiarid Argentine Patagonia that is currently a focus of afforestation programs. For this purpose, we used complementary approaches that included hydrological modelling (DINAQUA model), satellite image analysis, and soil wetness data. All analyses provided convergent results into hydrological effects of afforestation. The modelling results showed that afforestation significantly increased transpiration in relation to native grass?shrub steppe. In the steppe in degraded condition, transpiration accounted for only 10% (40 mm year?1) of total water flux, whereas in adult pine plantations, it accounted for up to 73% (277 mm year?1). Deep drainage was also severely affected by afforestation as it decreased from 182 mm year?1 in the steppe to zero in adult plantations, according to model simulations. Estimates from Landsat images also showed that evapotranspiration was higher in plantations compared with the steppe. Soil wetness data also revealed significantly drier soils in plantations. Our results indicate that pine plantations in the semiarid Patagonia evaporate all rainfall inputs, resulting in zero deep drainage and groundwater recharge. If the afforested area in the region increases, downstream meadow ecosystems, which are hotspots of primary productivity, may be negatively impacted.
653 $aAGUA SUBTERRANEA
653 $aALBEDO
653 $aGROUNDWATER
653 $aMEADOWS
653 $aPINUS
653 $aPINUS PONDEROSA
653 $aSURFACE TEMPERATURE
700 1 $aPARUELO, J.
700 1 $aNOSETTO, M.D.
773 $tEcohydrology, 2019, Article number e2113, 2019.
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